我在Spring上下文中运行TestNG测试的地方：
@ContextConfiguration(classes = { MyConfig.class })
@ActiveProfiles(profiles = { "development" })
public class MyTest extends AbstractTestNGSpringContextTests {
测试通过或正确失败，但是在不相关的Spring计划（需要几秒钟的时间来获取）的过程中出现错误，无法关闭hikari池：
Thread-4] INFO org.springframework.context.support.GenericApplicationContext
- Closing org.springframework.context.support.GenericApplicationContext@4c1d9d4b: startup date [Wed Apr 10 09:40:10 IDT 2019]; root of context hierarchy
[Thread-4] INFO com.zaxxer.hikari.HikariDataSource - HikariPool - Shutdown initiated...
[pool-3-thread-1] WARN com.zaxxer.hikari.pool.ProxyConnection - HikariPool - Connection oracle.jdbc.driver.T4CConnection@2e3cdec2 marked as broken because of SQLSTATE(08006), ErrorCode(17002)
java.sql.SQLRecoverableException: IO Error: Socket closed
at oracle.jdbc.driver.T4CStatement.fetch(T4CStatement.java:1068)
at oracle.jdbc.driver.OracleStatement.fetchMoreRows(OracleStatement.java:3716)
at oracle.jdbc.driver.InsensitiveScrollableResultSet.fetchMoreRows(InsensitiveScrollableResultSet.java:1015)
at oracle.jdbc.driver.InsensitiveScrollableResultSet.absoluteInternal(InsensitiveScrollableResultSet.java:979)
at oracle.jdbc.driver.InsensitiveScrollableResultSet.next(InsensitiveScrollableResultSet.java:579)
at com.zaxxer.hikari.pool.HikariProxyResultSet.next(HikariProxyResultSet.java)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:92)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60)
at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:466)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:408)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:478)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:488)
at com.package.MyDAO.getScheduleData(MyDAO.java:138)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketException: Socket closed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at oracle.net.ns.Packet.receive(Packet.java:311)
at oracle.net.ns.DataPacket.receive(DataPacket.java:105)
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:305)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:249)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:171)
at oracle.net.ns.NetInputStream.read(NetInputStream.java:89)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper.java:123)
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:79)
at oracle.jdbc.driver.T4CMAREngineStream.unmarshalUB1(T4CMAREngineStream.java:429)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:397)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:257)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:587)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:210)
at oracle.jdbc.driver.T4CStatement.fetch(T4CStatement.java:1054)
... 26 more
我的方法是：
@Scheduled(fixedRate = TIME)
public synchronized void refresh() {
我们可以优雅地关闭hikari游泳池吗？如果不能，那么在生产停机时也可以忽略此错误吗？